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Finding the Fourth Proportional to 57,675.60, 86,552.10 and 20,235.60

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Solution

The fourth proportional to 57,675.60, 86,552.10 and 20,235.60 is: 30,366.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,675.60 : 86,552.10 = 20,235.60 : x
  2. Step 2: Convert to fraction form
    57,675.60/86,552.10 = 20,235.60/x
  3. Step 3: Cross multiply
    57,675.60x = 86,552.10 × 20,235.60
  4. Step 4: Simplify right side
    57,675.60x = 1,751,433,674.76
  5. Step 5: Solve for x
    x = 1,751,433,674.76/57,675.60
  6. Step 6: Final answer
    x = 30,366.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.